Blaihofstr. 42

Germany

Blaihofstr. 42

Germany
SEARCH FILTERS
Time filter
Source Type

Baral H.-O.,Blaihofstr. 42 | Weber E.,Blaihofstr. 42 | Gams W.,Molenweg 15 | Hagedorn G.,Leibniz Institute For Evolutions Und Biodiversitatsforschung | And 7 more authors.
Mycological Progress | Year: 2017

A list of all generic names that have been connected with the Orbiliomycetes is provided. Recommendations are made as to which names should be used in accordance with the rules and the different generic concepts. There is a mismatch in the current generic concepts within Orbiliomycetes regarding the two morphs: a narrow concept is used for the asexual morphs, but a broad concept relies on the sexual morphs. As a consequence, many more generic names have been established for the asexual morphs. A number of previous generic concepts are artificial, since they were based on single characters without molecular support. In order to provide solutions for this mismatch, we present three different generic concepts within the Orbiliomycetes. A broad concept recognizes a large genus Orbilia, with which most of the listed names fall into synonymy, but could be maintained as infrageneric names. Due to the lack of data proving phylogenetic relationships, this broad concept, at present, is the most practicable and recommended one. A moderate concept subdivides Orbilia into several genera, with all nematode-trapping fungi merged in Arthrobotrys. A narrow generic concept accepts genera based on differences in trapping organs, but also subdivides the remaining groups of Orbilia into additional genera. Trapping of invertebrates (zoophagy) is not restricted to Arthrobotrys in a broad sense, but occurs also in the more distant basal genera Hyalorbilia and Lecophagus, which mainly prey on rhizopods and rotifers. Whether these predatory capabilities trace back to a common ancestor is not clear. The following new combinations are proposed: Hyalorbilia oviparasitica, Hyalorbilia quadridens, Hyalorbilia tenuifusaria, and Orbilia fissilis. © 2017 The Author(s)


Quijada L.,Ecologia y Fisiologia Vegetal | Baral H.-O.,Blaihofstr. 42
MycoKeys | Year: 2017

Orbilia beltraniae is a new succulenticolous species from the Canary Islands associated with Euphorbia scrubs. Phylogenetic analyses based on rDNA sequences of ITS and partial LSU were conducted to determine the relationships of the new species to others in the genus. Macro- and micromorphological, and ecology data are provided, as well as discussion in respect to closely related species. Orbilia beltraniae belongs to a strongly supported clade that includes non-nematophagous species of section Arthrobotrys, and its closest relatives are the European species O. rectispora and O. cotoneastri. Copyright Luis Quijada, Hans-Otto Baral.


Zhang Y.,Yunnan University | Dong J.,Yunnan University | He X.,Yunnan University | Qiao M.,Yunnan University | And 3 more authors.
Journal of Microbiology | Year: 2016

A new species of Orbilia related to O. luteorubella is described mainly based on morphological characters of its asexual morph and molecular data. The sexual morph does not significantly differ from O. luteorubella, whereas the asexual morph obtained from its ascospore isolate resembles members of the non-predacious genus Dactylella, because it has fusiform phragmoconidia borne singly at the apex of conidiophores. Phylogenetic analysis showed that this strain clustered with a clade that included available strains of the O. luteorubella aggregate and was distant from all analysed Dactylella species. Within this clade, the new strain fell between species with filiform conidia and those of a Pseudotripoconidium anamorph. By combining morphological and phylogenetic analyses, we conclude that our isolate belongs to a new taxon. Pleomorphism of the new taxon is described and discussed. © 2016, The Microbiological Society of Korea and Springer-Verlag Berlin Heidelberg.


Quijada L.,University of La Laguna | Baral H.-O.,Blaihofstr. 42 | Beltran-Tejera E.,University of La Laguna
Nova Hedwigia | Year: 2015

The genus Hyalorbilia in Macaronesia is reevaluated. Four species are new to this region (Hyalorbilia berberidis, H. brevistipitata, H. fusispora and H. polypori). Hyalorbilia inflatula is recircumscribed. The new combination Hyalorbilia polypori (Velen.) Baral & E.Weber is proposed. Hyalorbilia lunata is redefined according to vital taxonomy. A description of each species is given, together with notes on its distribution, ecology, and taxonomy. Similar species are briefly discussed. © 2014, J. Cramer in Gebr. Borntraeger Verlagsbuchhandlung, Stuttgart, Germany.


Quijada L.,University of La Laguna | Baral H.-O.,Blaihofstr. 42 | Beltran-Tejera E.,University of La Laguna
Nova Hedwigia | Year: 2013

Orbilia adenocarpi, Orbilia asomatica and Orbilia pisciformis are described as new species, occurring in hyperarid, arid, semiarid and dry scrubs. Macromorphological, micromorphological and habitat data are provided for the new species. © 2012 J. Cramer in Gebr. Borntraeger Verlagsbuchhandlung, Stuttgart, Germany.


Magyar D.,National Public Health Center | Merenyi Z.,Eötvös Loránd University | Bratek Z.,Eötvös Loránd University | Baral H.-O.,Blaihofstr. 42 | Marson G.,National Museum of Natural History
Mycological Progress | Year: 2016

Lecophagus vermicola sp. nov. is described and illustrated as a predacious (carnivorous) hyphomycete living in bark fissures of living trees of Platanus and other angiosperm and gymnosperm trees, recorded in Hungary, Luxembourg and France. The fungus captures nematodes unlike other Lecophagus species, which are predators of rotifers and tardigrades. The morphology of the sessile, adhesive knobs differ from all previously described species of the genus which form adhesive pegs. Molecular data confirms that the new species belongs to the Lecophagus clade but without matching existing sequences. The fungus captures victims with adhesive knobs and colonizes its prey with a mycelium of rather broad hyphae on which, again, adhesive knobs are formed which penetrate the cuticule of the victim. Clusters of colonized nematodes form a network utilized to capture more prey. The fungus lives in the xeric, ephemerally aquatic habitat of bark fissures of standing, living or dead, corticated trunks and branches. The genus Haptocara is compared, which has similar adhesive knobs capturing nematodes and similar broad hyphae, but for which no molecular data was available. © 2016 German Mycological Society and Springer-Verlag Berlin Heidelberg


Baral H.-O.,Blaihofstr. 42 | Marson G.,45 B | Bogale M.,Brandon University | Untereiner W.A.,Brandon University
Mycological Progress | Year: 2013

Xerombrophila, a new member of the Helotiales, is erected for a previously undescribed species that macroscopically resembles genera such as Phaeohelotium or Pezicula. The new species, for which we propose the name X. crystallifera, is characterized by a strong gelatinization of the medullary excipulum as well as the covering layer of the ectal excipulum, by the presence of abundant octahedral crystals, asci with an euamyloid apical ring that resembles the Calycina-type, and paraphyses containing refractive vacuoles. It can also be distinguished from members of both Ombrophila and Phaeohelotium in that it is desiccation-tolerant by surviving several weeks in the dry state. The species appears to be confined to xeric bark of Salix and was exclusively found over waterlogged soil, irrespective of being acidic or calcareous. It is known from various planar and colline areas of temperate Europe, and can be found throughout the year. Phylogenetic analysis of partial LSU sequences positions X. crystallifera as a sister taxon of a clade within the Helotiaceae s.l. that includes Ascocoryne, Chloroscypha, Gelatinodiscus, Neobulgaria and "Sarcoleotia" turficola. © 2012 German Mycological Society and Springer.


Zhao Y.-J.,University of Tsukuba | Hosoya T.,National Museum of Nature and Science | Baral H.-O.,Blaihofstr. 42 | Hosaka K.,National Museum of Nature and Science | Kakishima M.,University of Tsukuba
Mycotaxon | Year: 2012

Recent molecular analyses separate Hymenoscyphus pseudoalbidus (causal agent of ash dieback in Europe) from the morphologically scarcely distinguishable H. albidus. Hymenoscyphus albidus was reported (as "Lambertella albida") on petioles of Fraxinus mandshurica in Japan. Phylogenetic analysis in the present study shows Japanese "L. albida" to be conspecific with H. pseudoalbidus but with a higher genetic variability compared to European isolates. The presence of croziers at the ascus base was found to be a clear distinguishing character of H. pseudoalbidus. Our phylogenetic analysis of the combined ITS and LSU-D1/D2 dataset supports Hymenoscyphus as more appropriate than Lambertella for H. pseudoalbidus. As the Hymenoscyphus clade includes members with two major characters (presence of substratal stroma and brown ascospores) currently used to circumscribe Lambertella, the generic delimitation of Lambertella requires redefinition. © 2012. Mycotaxon, Ltd.


Baral H.-O.,Blaihofstr. 42 | Ernestas K.,Vilnius University | Ernestas K.,Lithuanian Academy of Sciences
Mycotaxon | Year: 2010

Helkogonium fusisporum, an intrahymenial ascomycete that forms its ascogenous hyphae and asci in the hymenium of Orbilia eucalypti (= O. coccinella s. auct. = O. alnea), is illustrated and described as a new species from Lithuania. © 2010. Mycotaxon, Ltd.


PubMed | Blaihofstr. 42 and Yunnan University
Type: Journal Article | Journal: Journal of microbiology (Seoul, Korea) | Year: 2016

A new species of Orbilia related to O. luteorubella is described mainly based on morphological characters of its asexual morph and molecular data. The sexual morph does not significantly differ from O. luteorubella, whereas the asexual morph obtained from its ascospore isolate resembles members of the non-predacious genus Dactylella, because it has fusiform phragmoconidia borne singly at the apex of conidiophores. Phylogenetic analysis showed that this strain clustered with a clade that included available strains of the O. luteorubella aggregate and was distant from all analysed Dactylella species. Within this clade, the new strain fell between species with filiform conidia and those of a Pseudotripoconidium anamorph. By combining morphological and phylogenetic analyses, we conclude that our isolate belongs to a new taxon. Pleomorphism of the new taxon is described and discussed.

Loading Blaihofstr. 42 collaborators
Loading Blaihofstr. 42 collaborators